Scientists use a to detect and study earthquake waves. Two types of Earthquake waves that travel through Earth’s interior are , which are compression waves and travel fastest, and which move back and forth and cannot travel through liquid. ​

You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars